The PvP rewards came out a day early, it is mentioned elsewhere. They are always out before the "New Season" starts eh? So you should still see them in the Rewards Box if you haven't collected them already.

If the Rewards Box is blank? No text there at all? It is a bug that "kicks" the rewards to the next season. That happens in Raids a lot, but could happen in PvP or Mission Rewards too I guess? If there's text saying you have no rewards to collect? Then either you already got them or they were lost & the FS Team can hopefully recover them for you.

There was an issue and the rewards were given 17h before the end of the season, that's the reason that you didn't get the rewards. I've sent you 50 golds and the Officer Pack (Shop screen -> gift button).